Bogino wrote in post #18555393
Often when I'm reading Buy & Sell sections I read disclosures that "Lens has some minor dust in it but doesn't affect image quality"...etc. That seems to be fairly common. My question is:
Can dust particles in a lens be removed and if so how is that done?
Here is a 3-part answer to your question.
1.) No. If this satisfies you, stop reading now.
2.) Its true. Dust in a lens will not affect IQ. If this satisfies you, stop reading now.
3.) Yes, the dust can be cleaned out of the lens. First you must find someone with the technical expertise, and necessary hardware to do the job. Next you will need to rent a 'clean room' at NASA, or INTEL, or someplace similar. Then you must pay to transport the technician, his gear, and your lens to the clean room. Said technician may then remove said dust from said lens. When the lens is removed from the clean room to be returned to you, it will immediately start accumulating more dust. Repeat. If this is unsatisfactory, see part 1.